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Noizefield has introduced Audio Plugin Coder (APC), a free, open-source tool that’s designed to let you create custom audio plugins without coding.

APC falls into the new category of ‘vibe coding’ development tools, which essentially let you use natural language prompts to describe what you want, and the tool does the coding for you.

It’s available now, and tested on Windows 11 and Linux.

Here’s what developer Max Pfetscher has to say about it:

“I’ve developed an open-source tool called Audio Plugin Coder (APC) that uses AI to help music producers create their own audio plugins without needing to know C++ or any programming. The idea came from seeing so many talented producers with brilliant ideas for custom effects and instruments, but no way to bring them to life without learning complex coding.

The project is completely free and open source, and I’m actively looking for feedback from the community to make it as useful as possible.”

Features:

• LLM-Driven Development – Designed to work with Antigravity, Kilo, Claude Code, Cursor, or any coding agent.
• Structured Workflows – Five-phase system: Dream > Plan > Design > Implement > Ship.
• Dual UI Frameworks – Choose Visage (pure C++) or WebView (HTML5 Canvas).
• State Management – Automatic progress tracking, validation, and rollback capabilities.
• Self-Improving – Auto-capture troubleshooting knowledge; the system gets smarter over time.
• Production Ready – JUCE 8 integration with CMake build system.
• Comprehensive Skills – Pre-built domain knowledge for DSP, UI design, testing, and packaging.

Audio Plugin Coder is a free, open-source tool that’s available now via Github.

Composer and developer Hannes d’Hoine shared this video demo of STRIKE Resonator, a free port of the Mutable Instruments Rings in Max For Live as an audio effect.

The device was developed in MaxMSP gen~, based on the original C++ source code by Emilie Gillet. It’s also available as a MIDI instrument.

Topics covered:

0:00 – M4L instrument: introduction

1:20 – some presets

4:10 – little jam

5:30 – sympathetic strings

6:25 – As an effects module/resonator

7:35 – instrument and effect combined

Following the open-source nature of the original, STRIKE is available as a free download under the MIT License.

Developer Jonas Eriksson has introduced Tape Fiasco – one of the most creative audio effect plugin.

Tape Fiasco combines together three time-based effects in a single plugin: a granular time-stretcher, a glitchy, rhythmic stutter effect and a tape-style varispeed function. Each of these modules can be used independently or chained up with the others via configurable signal routing. It is designed for real-time performance and sound design, offering tempo-synced operation, envelope follower modulation, and extensive parameter control for each effect section.

It’s Stretch effect records incoming audio into a buffer and plays it back using overlapping grains, offering control over playback speed, grain size, pitch, tempo and stereo spread, with options for randomization and reversing, so there’s a whole lot of flexibility here for creating granular soundscapes.

Tape Fiasco’s tempo-synced Stutter module captures slices of audio and repeats them rhythmically – it’s a classic effect that you’ll have heard before in glitch and IDM, but there’s a huge amount of control available over timing, pitch and dynamics, along with rhythmic and probability-based variation. There’s also a multimode filter built into the Stutter module with with formant and comb modes alongside the conventional resonant low- and high-pass.

Lastly we have the Varispeed effect, which simulates the sound of a tape machine varying in playback speed. Once again, there’s a lot more versatility on offer here than you might expect: tape-modelled wow/flutter, a DJ-style scratch effect, two flavours of distortion and a compressor thrown in for good measure.

All of that adds up to a powerful effects processor that can be utilized across multiple contexts, whether you’re adventuring into experimental sound design or just looking for a way to add a little sonic flavour to a vocal line or guitar riff.

Tape Fiasco is available in VST3/AU formats for macOS and VST3 for Windows, but it’s only been tested on Ableton Live 12.2 with macOS Sequoia 15.1.

Head over to Jonas Eriksson website to download Tape Fiasco.